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Title: The Impact of Emission and Climate Change on Ozone in the United States under Representative Concentration Pathways (RCPs)

Journal Article · · Atmospheric Chemistry and Physics, 13(18):9607-9621

Dynamical downscaling was applied in this study to link the global climate-chemistry model Community Atmosphere Model (CAM-Chem) with the regional models: Weather Research and Forecasting (WRF) Model and Community Multi-scale Air Quality (CMAQ). Two Representative Concentration Pathway (RCP) scenarios (RCP 4.5 and RCP 8.5) were used to evaluate the climate impact on ozone concentrations in 2050s. Ozone concentrations in the lower-mid troposphere (surface to ~300 hPa), from mid- to high latitudes in the Northern Hemisphere (NH), show decreasing trends in RCP 4.5 between 2000s and 2050s, with the largest decrease of 4-10 ppbv occurring in the summer and the fall; and increasing trends (2-12 ppbv) in RCP 8.5 resulting from the increased methane emissions. In RCP 8.5, methane emissions increase by ~60% by the end of 2050s, accounting for more than 90% of ozone increases in summer and fall, and 60-80% in spring and winter. Under the RCP 4.5 scenario, in the summer when photochemical reactions are the most active, the large ozone precursor emissions reduction leads to the greatest decrease of downscaled surface ozone concentrations, ranging from 6 to 10 ppbv. However, a few major cities show ozone increases of 3 to 7 ppbv due to weakened NO titration. Under the RCP 8.5 scenario, in winter, downscaled ozone concentrations increase across nearly the entire continental US in winter, ranging from 3 to 10 ppbv due to increased methane emissions and enhanced stratosphere-troposphere exchange (STE). More intense heat waves are projected to occur by the end of 2050s in RCP 8.5, leading to more than 8 ppbv of the maximum daily 8-hour daily average (MDA8) ozone during the heat wave days than other days; this indicates the dramatic impact heat waves exert on high frequency ozone events.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1095409
Report Number(s):
PNNL-SA-97235; KP1703010
Journal Information:
Atmospheric Chemistry and Physics, 13(18):9607-9621, Journal Name: Atmospheric Chemistry and Physics, 13(18):9607-9621
Country of Publication:
United States
Language:
English

References (53)

The vertical distribution of ozone instantaneous radiative forcing from satellite and chemistry climate models journal January 2011
Understanding the CMIP3 Multimodel Ensemble journal August 2011
Climate change, ambient ozone, and health in 50 US cities journal January 2007
Review of the Governing Equations, Computational Algorithms, and Other Components of the Models-3 Community Multiscale Air Quality (CMAQ) Modeling System journal January 2006
Evaluation of a WRF dynamical downscaling simulation over California journal May 2009
Model Representation of Secondary Organic Aerosol in CMAQv4.7 journal November 2010
Coupling an Advanced Land Surface–Hydrology Model with the Penn State–NCAR MM5 Modeling System. Part I: Model Implementation and Sensitivity journal April 2001
Future air quality in Europe: a multi-model assessment of projected exposure to ozone journal January 2012
Description and evaluation of the Model for Ozone and Related chemical Tracers, version 4 (MOZART-4) journal January 2010
Multi-model assessment of stratospheric ozone return dates and ozone recovery in CCMVal-2 models journal January 2010
Sensitivity and linearity analysis of ozone in East Asia: The effects of domestic emission and intercontinental transport journal July 2012
Evaluating the influences of biomass burning during 2006 BASE-ASIA: a regional chemical transport modeling journal January 2012
Higher trends but larger uncertainty and geographic variability in 21st century temperature and heat waves journal September 2009
Projected changes of extreme weather events in the eastern United States based on a high resolution climate modeling system journal November 2012
Isoprene and monoterpene emission rate variability: Model evaluations and sensitivity analyses journal January 1993
Simulation of the Global Hydrological Cycle in the CCSM Community Atmosphere Model Version 3 (CAM3): Mean Features journal June 2006
Impacts of long-range transport of global pollutants and precursor gases on U.S. air quality under future climatic conditions journal January 2008
Impact assessment of biomass burning on air quality in Southeast and East Asia during BASE-ASIA journal October 2013
A GCM Simulation of Heat Waves, Dry Spells, and Their Relationships to Circulation journal January 2000
Effect of climate change on air quality journal January 2009
The Kain–Fritsch Convective Parameterization: An Update journal January 2004
Future changes in tropospheric ozone under Representative Concentration Pathways (RCPs): CHANGES IN TROPOSPHERIC OZONE UNDER RCPS journal March 2011
Projections of mid-century summer air-quality for North America: effects of changes in climate and precursor emissions journal January 2012
Robustness and uncertainties in the new CMIP5 climate model projections journal October 2012
A novel downscaling technique for the linkage of global and regional air quality modeling journal January 2009
Impacts of future climate change and effects of biogenic emissions on surface ozone and particulate matter concentrations in the United States journal January 2011
Impact of Changes in Climate and Halocarbons on Recent Lower Stratosphere Ozone and Temperature Trends journal May 2010
Response of a coupled chemistry-climate model to changes in aerosol emissions: Global impact on the hydrological cycle and the tropospheric burdens of OH, ozone, and NO x journal January 2005
Global and regional evolution of short-lived radiatively-active gases and aerosols in the Representative Concentration Pathways journal August 2011
Understanding the drivers for the 20th century change of hydrogen peroxide in Antarctic ice-cores: HYDROGEN PEROXIDE IN ANTARCTIC ICE-CORES journal February 2011
CAM-chem: description and evaluation of interactive atmospheric chemistry in the Community Earth System Model journal January 2012
The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP): overview and description of models, simulations and climate diagnostics journal January 2013
More Intense, More Frequent, and Longer Lasting Heat Waves in the 21st Century journal August 2004
THE WCRP CMIP3 Multimodel Dataset: A New Era in Climate Change Research journal September 2007
Climate System Response to External Forcings and Climate Change Projections in CCSM4 journal June 2012
The RCP greenhouse gas concentrations and their extensions from 1765 to 2300 journal August 2011
Impact of a New Radiation Package, McRad, in the ECMWF Integrated Forecasting System journal December 2008
The next generation of scenarios for climate change research and assessment journal February 2010
Linking global to regional models to assess future climate impacts on surface ozone levels in the United States journal January 2008
The Meteorology-Chemistry Interface Processor (MCIP) for the CMAQ modeling system: updates through MCIPv3.4.1 journal January 2010
Scenarios of long-term socio-economic and environmental development under climate stabilization journal September 2007
Global warming under old and new scenarios using IPCC climate sensitivity range estimates journal February 2012
A time-split nonhydrostatic atmospheric model for weather research and forecasting applications journal March 2008
Multi-Gas Forcing Stabilization with Minicam journal September 2006
The predicted number of air pollution related deaths in the UK during the August 2003 heatwave journal March 2004
Trends in Arctic sea ice extent from CMIP5, CMIP3 and observations: ARCTIC SEA ICE EXTENT FROM CMIP5 journal August 2012
An Overview of CMIP5 and the Experiment Design journal April 2012
Modelling surface ozone during the 2003 heat-wave in the UK journal January 2010
Implications of Limiting CO2 Concentrations for Land Use and Energy journal May 2009
WRF-CMAQ two-way coupled system with aerosol feedback: software development and preliminary results journal January 2012
Pre-industrial to end 21st century projections of tropospheric ozone from the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) journal January 2013
Sensitivity of climate simulations to the parameterization of cumulus convection in the Canadian climate centre general circulation model journal September 1995
Improved estimate of the policy-relevant background ozone in the United States using the GEOS-Chem global model with 1/2° × 2/3° horizontal resolution over North America journal December 2011